Printing machine



July N. J. PANTAZAKOS 2,423,112

PRINTING MACHINE Filed May 26, 1944 s Sheets-Sheet 1 llllllll ll i BY I JTTOR y 947. N. J. PANTAZAKOS 4 2,423,112 I PRINTING MACHINE w INVENTOR.

\illllfi 5 Sheets-Sheet 2 M66 a/ojJ an'fa zakox Filed May 26. 1944 ATTORNEY July 1, 1947. N. J. PANTAZAKOS PRINTING MACHINE Filed May 26, 1944 5 Sheets-Sheet 3 (/03 gfiyfii jay/03 h HHH'H' 6.5 III 56' 6 I WNW nmuummm-g I 98 "/z f? m MPNNHNIH an m" h F !I flTTOPIV Y July 1947. N. J. PANTAZAKOS 2,423,112

PRINTING MACHINE Filed May 26, 1944 5 Sheets-Sheet 4 98 95 w /oe his /03 A 1 I. H k ll II (5 f a 8 l I ll] #7 W In. /a M c I l I July 1, 1947.

N. J. PANTAZAKOS PRINTING MACHINE Filed May 26, 1944 5 Sheets-Sheet 5 L! RNEV ' INVENTOR. MMO/QAZPOIZY ZO/TOJ Patented July 1, 1947 UNITED rnm'rnvc MACHINE Nicholas J. Pantazakos, United States Army, Westwood, N. J.

Application May 26, 1944, Serial No. 537,447

19 Claims. (CL 101-41) (Granted under the act of March 3, 1883, as amended April 30, 1928; 370 0. G. 757) The invention described herein, if patented, may be manufactured and used by or for the Government for governmental purposes, without the payment of any royalty to me thereon.

This invention relates to printing, and more particularly to a machine for printing impressions on bags, sacks, fabric containers and the like.

The device is especially useful in printing the names, serial numbers and other identifying data on barrack bags, duffel bags and the like which are used by members of the Armed Forces. This identifying data has been applied to these bags, heretofore, by the conventional hand-stenciling method, in which marking ink is applied to the material by a brush which is inserted through the character-forming apertures in the usual stenciling strips. These stenciling operations require relatively long periods of time for their completion, and inasmuch as each character is ordinarily formed by manipulating a brush so that its bristles extend through a stenciling aperture, the formed characters lack uniformity in appearance and frequently they are incomplete.

It is an object of this invention to provide a printing machine which includes a form, a movable platen having an impression face, means for stretching material which is to be printed over the impression face of the platen, and means for moving the platen into operable engagement with the form to thereby print impressions on the material.

Another object of this invention is to provide a bag-printing machine which includes a mova- 'ble platen having an impression face, the platen being constructed and arranged to be received within a bag with the bag-forming material covering the impression face, a form positioned for operable engagement with the impression face of the platen, and means for moving the platen into operable engagement with the form to thereby print impressions on the said material.

A further object of this invention is to provide a bag-printing machine which includes a movable platen having an impression face. the platen being constructed and arranged to be received within a bag with the bag-forming mate.

rial covering the impression face, a frame adapted to securely engage the platen to tautly draw the said material over the impression face of the platen, a form positioned for operable engagement with the impression face of the platen, and means for moving the platen into operable engagement with the form to thereby print impressions on the said materiah A specific object of this invention is to provide a bag-printing machine which includes a bed. a movable-platenhaving an impression face, the platen being constructed and arranged. to be received within a bag with the material of the bag coveringthe impression face, a frame adapted to accurately engage the platen to tautly draw the said material over the impression face ,of the platen, a removable form adapted to be supported in the bed in position to operably cooperate with the impression face of the platen, and an impression lever adapted to opera-bly engage the platen and move" it into operable engage-' ment' with the form to thereby print impressions on the bag material.

A more specific object of this invention is to provide a bag-printing machine which includes a bed, a movable platen having an impression face, the platen being constructed and arranged to be received within a bag with the material of the bag covering the impression face, -a. frame adapted to accurately engage the platen to tautly draw the said'material over the impression face of the platen, a removable form holder carrying a printing form and adapted to be supported in the bed in position to operably cooperate with the impression face of the platen, an impression lever adapted to operably engage the platen and move it into'operable engagement with the form to thereby print impressions on the bag material, and releasable means for holding the impression lever in a position of disengagement from the platen.

It is also an object of this invention to provide a printing machine of generally improved arrangement, whereby the device will be simple, durable and inexpensive in construction, as well as convenient, practical, serviceable and eificient in its use.

With the foregoing and other objects in view which will appear asthe description proceeds, the invention resides in the combination and arrangement of parts and in the details of construction hereinafter described and claimed, it being understoodthat various changes in form. proportion and minor details of construction may be made within the scope of the claims without departing from the spirit or sacrificing any advantages of the invention.

For a complete disclosure of the invention, a detailed description thereof will now be given in connection with the drawings forming a part of the specification, wherein:

Figure 1 is a perspective view of ,a form of my invention;

Figure 2 is a similar view but depicting the components of the device in disassembled relationship;

Figure 3 is a vertical longitudinal sectional view taken through the printing device with the components pes'it'idned in their printing relationship;

Figure 4 is a fragmentary vertical transverse sectional view taken on the line 4-4 of Figure 3:

Figure 5 is a fragmentary vertical longitudinal sectional view taken on the line 55 of Figure 4;

Figure 6 is a plan view of a modified form of the invention;

Figure 7 is a front view thereof Figure 8 is a vertical longitudinal sectional view taken approximately on the line 8-8 of Figure 6, depicting the components of the printing device in printing relationship and certain edicponents in elevation;

h Figure 9 is a similar View depicting the compfznefitser thejdevice in their hemrinting or har r l l pr v was a orizjontal'sectional View taken onlthe lirie w ll) of FigureB; and

Figiiie 11 is a fragmentary vertical longitudinal seminal-view taken on the line ll-'H of Figuf 9 and depicting the guiding and supportin cappdhents for'the bags stretching member.

eiiii'ig to, the drawings, in which corre- "a parts are indicated by similar reference cte'ifs, there is depicted in Figures 1 to 5 afer n of ii'liriroved printi g machine which ihhnides afha's'e br bed 15 having spaced sills or siippfir'ts l6 and opposed side members or falls [1. jIhe sills l6 and side members I! extend ldng'it idiiially alpng the bed l5 from from to baekfthjere'of. The upper surface of the bed 15 1S ererera i covered by a facing strip or plate [8, ar'id'tlie faeiiig' strip I8 'supportsa transversely e3: ending guide or stop rail which has its forwar ed'ge' rabbeted to define an overhanging flange er up 2|, as best seen in Figure 3.

,A shaft 22 is rotatably supported in bearings formed in or supported by the side members [1, and theinterrhediate portion of the shaft 22 has aeoinp'osite impression lever 23 rigidly secured thereto. The impression lever 23 includes spaced lever irieii'ibers' 25 which are united at their outer terminals by a manipulating handle 26, and they are else iin'it'e'd intermediate their terminals by a cross member or impression weight 21. Each levri'neinber 25 has anoif'set portion or impression foot 28 extending'downwardly from the intermediate portion of its lower edge, and the lower face of each impression foot 28 has a facing'plate orfstrap30 secured thereto which is preferably disposed in substantially tangentialrelation to the shaft 22.

A form holder 3] (Figures 2 and 3) is provided, and it includes a'base 32 having spaced parallel ribs in runners 33 extending upwardly from its use 1 face to define spaced type receiving grooves 35. lie grooves 35 are arranged to receive type blocks 35 having character forming faces 31 prererabiy bf the conventional 72 point size, v and thesehldcks provide aprinting form. The form f amers: is adapted toflbe removably received on the upper surface of the bed facing l8, and it is located and aligned in correct printing position by positioning its inner longitudinal edge under the biiihangirig lip 2| of the guide rail 20. In this pbsition, the forward longitudinal edge 38 ofthe form holder 31 engages the rear edge of a fixed form holder which is supported on the bed facing 18 adjacent the forward edge of the bed [5, and the end edges of the form holder en'- gages the inner edges of the base strips 45, thus securing the form holder against movement relative to the bed. The form holder 40 is provided with a rectangular recess 4| adapted to snugly receive a relatively large type block 42 having a character-forming face 43. The type blocks 36 and 42 are of the same printing height, so that their character-forming faces will simultaneously print during a single printing impression, as will be more fully explaned hereinafter.

Base strips 45 are secured to the upper face of the bed facing 18 and extend therealong from front to rear immediately adjacent the side membars I l, as best seen in Figures 1, 2 and 4. Each base strip 45 is provided with spaced shallow apertures 46 (Figures 4 and 5) for the reception of the lower terminals of helical springs 41, and

the upper terminal of each spring 41 is received within a shallow aperture 48 formed in the lower face of a platform rail or member ifl; I Eaeh platfarm ran 50 is "guided for vertieal fiioveitient relative to a basestrip-35' by spacedaewls er pins 5 whih have their I'd-wee" terminates-caused tothe bed t5, aha -tlieir upper partials suaahi received in apertures-trformed -in the platfr'mrails 50; By' tliis arrangement; the platform rails 50 are yieldably supported by the springs 41 which are operably interposed between the- -bas'e strips 45 and theplatform fails 50.

- Abag' holder oheiaten' 55 -is'pr'vided=,-;nd-this platen inelu'des a body 56 aving laterally-extending flanges 51 and also fewer-dry extending and rearwardiy'eiitehdmg'-flahges-sa. The ldvfir surface or; the platen hedy ss'hasatransverse'r eict'n'dirig blanket er packing strip '59 secured thereto (Figures 2 and 3) 'which is-ccver'ea bya trainee striped 'The tympanstrirrsfl is prefer'ably formed of gasket-rubber, afidthe'bl'ariket or packing strip is preferably formed-cf splin'ge rubber, thus providing'ah efieetive, impressihn fade to cooperate with the hharacter -rorming surfaces of-the type memb rs, rel-a purpose which will be explained hereinafter;

The forward portion of the lower faee of the platen botlylifi has a relatively'sinall rectangular and longitudinallyeeitehding packing 6r Blanket strip 6i secured thereto, and the blanket strip sl is-ccvere'd ty-a ty'rnpan strip- 62' cf the same cohnguratich, and tliis tyinpan strip is heated to cooperate with the character forniing face 45 of the type block 42. The upper face (if the platen body 56 has two longitudinally-iiteiiding wear plates fir-straps '63 's'ecii'red there'te -and these plates are located to be engaged by the plates-3o carried by the-feet 28 of the impression lever 23' when the components are moved "to priheihg r' elati hsmp.

A hag stretching cr tensicningrramets' is-pio v'iaea hdit ineludes pai d side reuse; m mbei's 6 and spaced end 'rails-dr-ineiiibers which are united to form a edrnposite strue'mre; "The forwar earners hi this frame are reinforced by dblig'uely eiiteiiding' legs 68 which are disposed so that their inner edges '69 ceopt'erate "with the obliquely dis'posed edges io-rgrihed oh the forward pertionpr the platen 55; for a pur ose to be later explained. Apertures II are fdrnied in the trainees to receive thedowelsiltcguid'e the mev'emeht of the frame '65 and pIaten-SB rela avg tnthe time.

"The shaft 22; has a pawi-to secured thereto, and this pawl is adaptedto 'oplably engage a releasing member oi; bell crank-8| which about a. pivot or fulcrum B2. A red or bar-8'3 is s'lidably supported in bearing members 85, and one terminal of this rod engages an arm of the bell crank 8|, while its opposite terminal is engaged by the lower arm 86 of a lever 81 which is pivotally supported, as indicated at 88. The bell crank 8I is biased by a spring 90 for movement about its pivot 82, so that it engages the rod 83 and tends to force the rod toward the lever 81. The movement of the lever 81 about its fulcrum 88, responsive to the tension exerted by the spring 90 through the interposed rod 83, is resisted by a stop pin al which engages the lever to limit its movement about the pivot 88.

In operation, selected type blocks 36 and 42 are positioned in the form holders 3I and 40, and then the removable form holder 3I is positioned in printing location on the bed I5. Now the type is inked by passing a conventional roller or brayer, not shown, over their character-forming faces 31 and 43.

The bag B, which is to be printed, is placed around the platen 55 (Figures 3 and 4) so that the portions of the bag which are to receive the printing impressions cover the impression faces 60 and 62 which are carried by the platen or bag holder. After the platen 55 has been positioned within the bag B, thebag stretching frame 65 is placed around the platen with the inner faces of the platen flanges 51 and 58 engaging the side and end rails 55 and 81 of the frame 55. When the bag stretching frame 55 i placed around the platen 55, the material of the bag is tautly drawn over the impression faces 60 and 52. Now the platen 55 and the frame 55 are positioned on the platform rails 50, with the components of the frame 65 engaging the upper surfaces of the platform, and with the dowel 5| positioned in the aligning apertures II formed in the frame 55. By this arrangement, the impression faces 50 and 62 of the platen 55 are located to properly align or register with the character-forming faces 31 and 43 of the forms which are supported on the bed I5.

With the components so located in the machine, the operator grasps the handle of the release lever 81 and rocks this lever about its fulcrum 88, thereby causing the bell crank 8I to move from engagement with the pawl 80, thus releasing the impression lever 23. The impression lever gravitates until its plates 30 engage the plates 63 of the platen, and then the momentum of the weighted lever 23 forces the platen 55 downwardly against the tension of the platform springs 41 until the bag material which covers the impression faces of the platen 55 are forced into printing engagement with the printing faces of the type supported in the form holders. This action impresses the required printing impressions on the bag material, and after these printing impressions are completed, the platform springs 41 move the platen 55 upwardly so that the bag material is moved from engagement with the type faces. Now the operator grasps the handie 25 of the impression lever 23 and moves the lever upwardly until the pawl 80 snaps to locking engagement with the lever 8 I, thereby holding the impression lever 23 in its elevated position preparatory to the next printing operation.

In the form of my invention disclosed in Figures 6 to 11, there i disclosed a bed I5a which supports a removable form holder 3 Ia and a fixed type holder 40a. The bed also rotatably supports a. shaft 22a, and the shaft 220, in turn, supports an impression lever 23a which is rotatable relative to the shaft.

Aplaten 55a is provided, and it has rearwar'dly extending arms which are secured to the shaft 22a by pins 95 or other suitable securing devices. Each arm 95 has a bar or rod '91 secured thereto by positioning the rod 91 in an aperture formed in the arm 95 and clampin the rod to the arm by nuts 98 which are threadedly secured to the rod. The outer terminal of each rod 91, is pro vided with a laterally-extendin finger I00 which is received within an aperture IOI formed in each supporting leg 25a of the impression lever 2311. A cushion block I02 is preferably positioned in one terminal of each aperture IOI, for a purpose to be hereinafter disclosed A bag stretching frame 65a is yieldably supported on the bed I5a through the instrumentality of helical compression springs 41a which normally maintains the frame in spaced relation to the bed I5a, and the upward movement of the frame 65a is limited by stop members or brackets I03 which are carried by the bed I5a and overhang the side rails of the frame 65a. In this position the frame 55a is disposed between the bed I50. and the platen 55a in the path of movement of the platen, so that the inner surfaces of the frame 65a engage the outer surfaces of the platen 55a, similar to the arrangement hereinbefore disclosed. In order to insure that the frame 55a is constrained to movement in the path of travel of the platen 55a, guide pins or dowels I5a are threadedly secured to the side rails 55a of the frame, as best seen in Figure 11. The outer or lower terminal of each guide pin 51a is slidably received in an aperture lIa formed in the bed I5a.

The outer terminals of the impression lever supporting legs 25a are provided with lugs I08, and each lug has an arcuate recess IIO formed therein for cooperable ngagement with a yieldable detent III which is slidably mounted in a bracket I'I2 which extends from the bed I5a. A helical compression spring H3 is received within an aperture II5 formed in each bracket H2 and each spring H3 is operably positioned between the inner terminal of a detent I II and a stop plug II 4, the stop plug being threadedly secured within the outer terminal of each aperture II5.

In the operation of this form of my invention. when the impression lever 23a is moved upwardly above the shaft 22a to the operable limit of its movement, each detent III snaps into engagement with a recess IIO, thereby holding the impression lever 23a in its uppermost position. As the impression lever 23a is moved upwardly, the fingers I00 carried by the platen arms 95 are engaged by the cushion blocks I02 supported in the recess IOI formed in the impression lever legs 25a. When the fingers I00 are engaged by the cushion blocks I02, the platen 55a is moved upwardly with the impression lever 23a about the shaft 22a and remains suspended from the impression lever 23a in position to conveniently re-' ceive the bag B. The bag is then placed over the platen 55a, so that the has material covers the impression faces of the platen. as best seen in Figure 9.

After the bag has been positioned around the platen 55a, the manipulating handle 26a of the impression lever 23a. is grasped, and then the lever is moved downwardly about the axis of the fulcrum shaft 22a. During the initial downward movement of the impression lever 23a, the platen 55a, which is suspended from the impression lever 23a, moves downwardly with it until the platen engages the frame 55a. At thi point of the-op- 7 eration, the downward movementof the platen 55a is resisted by its engagement with the frame 6511 but the continued downward movement; of the impression lever -2-3a causing the lower face 30a of the impression lever to engagethe upper face 634: of theplaten, to thus force the platen into the frame 6511, thereby causing the frame to stretch the material of the bag B over the impression faces of theplaten, After the ba B has been stretched by the engagement of the platen 55a with-theframe 65c, continued down-' ward movement oftne impression 1ever23a forces the impression faeesuor the-platen 55a into operable engagement with the faces oft-the type car-- ried in'the forms'supporte'd on the bed (5a,- thereby printing the impressions on the material of the After printingimpressions have been completed, the impression lever 23a is againnioved upwardly, and its initial upward movementis; lay-the compression springs 41a, which bias the frame GSa-for upward movement. when the frame 65:; reaches the limit ofit upward movement 1t-.en ages--the stopsill-Whicharrest further upward-movement,- andthen the i'aten $511" is-witndrawn from frame 65c, thereby releasing the printed bag. when the impression lever fizz-reaches the upper Iiniitf it's operable movement, the platen-5w see pended in position'to permit 'bag'B- to-be convenienny removed therefrom; "The" machine isncw in" positionto receive the next bag prepare torvtothe next printing" operation.

With this construction and arrangemenu-t-he operable function or the printing components- 0f the machine are automatically performed"whenthe level 23a is'manipulatedto move it to and from bed 1511, assumin of course, thattbe bag B ls properly positioned on the-platen 55a and that the printing races of the type are lihliedb'y the usual roller Ofbfay'er.

Iclaiinz' 1. In a printing machine, a bd, a printing form supported by the bed, a platen movable relative to the form, a frame having inner faces inteffittingwith andldimensipned to surround outer faces of the platen to tautly secure the material to be printed to the platen in position to engage the form, and means movable relative to the machine and platen for engaging the platen to move it to operably engage theform to print impressions on the said material.

2. In -a printing machine, a bed, a printing form supported by the bed,a platen movable relative to the form, a frame having inner faces interfitting with and dimensioned to surround outer faces of the platen to tautly secure the material to be printed to the platen in position to engage the form, means for normally supporting the frame and platen in spaced relation to the form and yieldable to permit the platen to operably engage the form, and-means movablerelative to the machine and platen forengaging the platen to move it to operably engage the form to print impressions on the said material.

3. In a printing machine, a bed, a printing form supported by the bed, a platen movable relative to the form, guiding means for maintaining the movable platen in parallel relation to the form, means for tautly securing the material to beprinted to the platen in position to engage the form, and means movable relative to machine and platen to engage the platen to move it to operably engage the form to print-impressions on the said material.

4. In a printing machine, a bed, a printing f0] supported by the bed, a platen movable relati to the form, a frame having inner faces intr fitting with and dimensioned to surround out faces of the platen to tautly secure-the mater to be printed to the platen in position to enga the form, guiding means for maintaining t platen in parallel relation to the form, and mea movable relative to the machine and platen l engaging the platento move it to operably enga the form-to print impressions on the said materi 5.- Ina printing machine, a bed, a printing for supported by the bed, a platen movable relati to the form, a frame having inner faces inte fitting with and dimensioned to surround out faces of the platen to tautly secure the mater: to beprinted to the platen in position to enga the form, guiding means for maintaining t movable platen in-parallel relation to the for, means for normally supporting the frame a1 platenin spaced relation to the form and yil able to permit the platen to operably enga the form, and means movable relative to t machine and platen for engaging the platen move it to operably engage the form to pri impressionson the said material.

6. Ina printingmachine, a bed, a printlngfoi supported-bythe bed a platen movable relati tothe fornn. means for tautly securing the mat rial-t0 beprl-nted to the platen in position engage the form, weighted impression lever pi otally supported by the-machine and moval byzgravity relative to the platen for engaging t platen to move itto operably engage the for toprint impressions on the said material, a: detent means on said base for holding the i1 pression-lever from engagement with the plate said detent means being releasable to permit sa lever to move into engagement with said plate '7. Ina-printing machine, a bed. a printing to: supported by the bed,- a platen movable relati to the form, a frame having inner faces inte fitting with and dimensioned to surround out faces-of the platen to tautly secure the mat rial to be printed to the platen in position engage the form, an impression lever pivotai supported by the machine and movable relati to the platen for engaging the platen to move topper-ably engage the form to print imprcssio on the said material,

8; In aprinting machine, a bed, a printing f0] supported by the bed, a platen movable relati to the form, a frame having inner faces inte fitting with and dimensioned to surround out faces of the platen to tautly secure the mater to-be-printed'to the platen in position to enga the form, animpression lever pivotally support by the machine and movable relative to the plat for engaging the ,platen to move it to operal engagethe form to print impressions on the se materiaL-and releasable means for holding t impression lever from engagement with t platen.

In-a. printing machine, a bed, a printing f0] supported by the bed, a platen movable relati to the form,-a frame having inner faces inte fitting with and dimensioned to surround oui faces of the platen to tautly secure the mater to be printed to the platen in position to enga the form, means for normally supporting t frame-andplaten in spaced relation to the 1'01 and yieldableto permit the platen to operal engage the form, and an impression lever p1 ot'ally supported by the machine and moval relative to the platen for engagingthe platen move it to operably engage the form to print p es ns on thesaid material.

10. In a bag-printing machine, a bed, a printing form holder removably secured to the bed, 'a

printing form supported by the form holder,. means for locking the form holder in printing position in the bed, a removable platen having an impression face adapted to be positioned in the bag to be printed, a frame having inner faces interfitting with and dimensioned to surround,

outer faces of the platen to tautly secure the portion of the bag which is to be printed over the impression face of the platen, and an impression lever pivotally-secured to the machine and adapted to engage the platen to move it so an impression face adapted to be positioned in the bag to be printed, a frame having inner faces interfitting with and dimensioned to surround outer faces of the platen to tautly secure the portion of the bag which is to be printed over the impression face of the platen, an impression lever pivotally secured to the machine and adapted to engage the platen to move it so that its impression face operably engages the form to print impressions on the bag, and means for releasably securing the impression lever in a position away from engagement with the platen.

12. In a bag-printing machine, a bed, a printing form supported by the bed, a platform yieldably supported'by the bed, a removable platen having an impression face and adapted to be positioned in the bag to be printed, a frame having inner faces interfitting with and dimensioned to surround outer faces of the platen to tautly secure the portion of the bag which is to be printed over the impression face of the platen, means for removably securing the frame and platen to the platform with the platen in spaced relation to the form, and an impression lever pivotally supported by the machine and adapted to engage the platen and move it so that its impression face operably engages the form to print impressions on the bag.

13. In a bag-printing machine, a bed, a printing form supported by the bed, a platform yieldably supported by the bed, a removable platen having an impression face and adapted to be positioned in the bag to be printed, a frame having inner faces interfitting with and dimensioned to surround outer faces of the platen to tautly secure the portion of the bag which is to be printed over the impression face of the platen, means for removably securing the frame and platen to the platform with the platen in spaced relation to the form, a weighted impression lever pivotally supported by the machine, releasable means for holding the impression lever from engagement with the platen, and means to actuate the said releasing means to release the impression lever whereby the lever gravitates into engagement with the platen and forces the impression face of the platen into printed engagement with the form to thereby print impressions on the bag.

14. In a printing machine, a bed, a printing form supported by the bed, a platen movable relative to the form and cooperable therewith to print impressions on material located between the form and platen, an impression lever pivotally ,15 that its impression face operably engages the supported in the machine and movable about its pivot to operably engage the platen and force it into printing engagement with the form, a pawl movable ,with the impression lever, a. movable member adapted to engagethe pawl to 'lockfihe impression lever against movement towards the platen, and manually-operable means for moving the movable member to release the pawlvto permit the impression leverv to. move about. it's'pivotto operable engagement with the platen.

15. In a printingmachine, a bed, aprinting form supported by the bed, a platenniovable about a pivot relative'to'the form and havin an impression face adaptedto, 'coope'rablybn'gage the printing form, a framehaving inner,- faces interfitting with and dimensioned .to surround outer faces of the platen and yieldably'supported between the form and platen in the'path of movement of the platen towards the form, said frame being adapted to tautly draw the material to be printed over the impression face of the platen when the platen engages the frame in ,its"mov,ement toward the form, and an impression lever movable about a pivot relative to the platen and adapted to engage the platen and move it into operable engagement with the frame to secure the said material to the platen and to further move the platen into operable engagement with the form to print impressions on the material.

16. In a printing machine, a bed, a printing form supported by the bed, a platen movable about a pivot relative to the form and having an impression face adapted to cooperably engage the form, a frame having inner faces interfitting with and dimensioned to surround outer faces of the platen and yieldably supported between the form and platen in the path of movement of the platen towards the form, said frame being adapted to tautly draw the material to be printed over the impression face of the platen when the platen engages the frame in its movement toward the form, an impression lever movable about a pivot relative to the platen and adapted to engage the platen and move it into operable engagement with the frame to secure the said material to the platen and to further move the platen into operable engagement with the form to print impressions on the material, means for releasably securing the impression lever in a position of disengagement from the platen, and means for supporting the platen in a position of disengagement from the form and frame.

1'7. In a printing machine, a bed, a printing form supported by the bed, a platen movable about an axis and having an impression face adapted to cooperably engage the printing form, a frame having inner faces interfitting with and dimensioned to surround outer faces of the platen and yieldably supported between the form and the platen in the path of movement of the platen towards the form and adapted to tautly draw the material to be printed over the impression face of the platen when the platen engages the frame in its movement towards the form, an impression lever movable about the said axis relative to the form and adapted to engage the platen and move it into o erable engagement withthe frame to secure the said material to the platen and to further move the platen to operably engage the form to print impressions on the said material, means for releasably securing the impression lever in a position of disengagement from the platen, and means for suspending the platen from the impression lever in a position of disengagement from the form and frame, the said 1 1 platen mean permittin imit imvement Qfthe platenxelatlve t9 the impr s lever.

1.15; .ln-a-pnnting mashi bed;- a pant 'io msupgpttealix'tlle Desi. .a-n aten mo a le to pnntmesngasementwitn the rm an hayinganimpr sslon zeta normally: svpm t di s aseiimetiontatlieiozm in Position in wh a ti e" m n be convenien ly pie-test am mcl th platemq evcrsits-lmpxession tees, .fram ih 'ii innematesin emt mewitiim d me s cne levee. movable-relative to: the $0. m and d p t xagage tli platen..md mo t m o qnera i engagement" with the. game nd int printm engagemen the mm to Print mn m mine-best 192 a: pr m ng-mammal best a Punt fm upmrteslbytne beqm nlaten'm vab re imve to' ti e to ment! pnemb t w 12 print impressions on material located between the form and platen, an impression lever plvotally supported in the machine and movable by} it own weight about its pivot to operably engage the platen and force it into printing engagement with the form, means for normally holding-saidimpression lever out of engagement with said platen, and manually operable means to release the holding means so as'to permit the impression lever to move about its pivot co-operable engagem t with. -p a n NICHOLAS J.

REFERENCES SITE!) he oll lnereierenc are of record. in th file of this patent:

UNITED STATES' PATENTS Number Name Date 132, 0 Sm h aw onm- Ost. 15; 1872 .1 6 BcQ man- -r-l--.,--.- F b. 21. 1888 603.685. Gilli1and..,--- -.May l0, 1893 ,285 Sm th Apr. 8, 1902 Certificate of Correction Patent No. 2,423,112. July 1, 1947.

NICHOLAS J. PANTAZAKOS It is hereby certified that errors appear in the printed specification of the above numbered patent requu'ing correction as follows: Column 6, hne 31, for 15a read 51a; column 8, line 31, claim 6, after form, insert the article a; and that the said Letters Patent should be read with these corrections therein that the same may conform to the record of the case in the Patent Oflice.

Signed and sealed this 2nd day of September, A. D. 1947.

LESLIE FRAZER,

First Assistant Commissioner of Patents. 

